Home / 254,663.20-381,557.40-121,256.20

Finding the Fourth Proportional to 254,663.20, 381,557.40 and 121,256.20

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Solution

The fourth proportional to 254,663.20, 381,557.40 and 121,256.20 is: 181,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,663.20 : 381,557.40 = 121,256.20 : x
  2. Step 2: Convert to fraction form
    254,663.20/381,557.40 = 121,256.20/x
  3. Step 3: Cross multiply
    254,663.20x = 381,557.40 × 121,256.20
  4. Step 4: Simplify right side
    254,663.20x = 46,266,200,405.88
  5. Step 5: Solve for x
    x = 46,266,200,405.88/254,663.20
  6. Step 6: Final answer
    x = 181,676.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.